"SQUID" Magnetometer
Contact
LCI - Build.: 670 HM1 recherche
Office room 2303
Tel.: 01 69 15 78 21
Equipments room: 0223
Activity
Characterization of the magnetic properties for compounds generally in the solid state: magnetization (dc) vs temperature (from 2 to 400 K) or vs magnetic field (from 0 to +/- 7 T) measurements, alternative susceptibility (ac) measurements (frequency from 0.1 to 1500 Hz).
Determination of the electronic configurations for the magnetic centers, of the exchange coupling parameters, of anisotropy parameters. Characterization of superparamagnetic or superconducting compounds.
DC measurements
The sample is set in a uniform magnetic field where it acquires a magnetization then the sample is moved vertically. The variation in magnetic flux generated by this movement creates an electric current in a superconductive circuit. This current is converted by a SQUID sensor (Superconducting Quantum Interference Device) into an electrical signal proportional to the magnetization of the sample.
Samples
Bulk, powder, nanoparticles, films. Solutions can be considered.
How to use it
The measurements are carried out by the engineer, except for ICMMO researchers after training.
Options
Measurements under (or after) light irradiation (pulsed or cw lasers - Wavelengths: from 355 to 1600 nm).
Usefull links:
| Francophone magnetometry network | 
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| European Magnetometry Network | 
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| Curve simulation software: Phi | 
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